678 / 1840
Introduction on Dose Optimization
The “Ohm’s-Law” in Brachytherapy: the Dosimetric Kernel
) ,r(F)r(g
) ,r(G
) ,r(G
Λ S ) ,r(D
L
0 0L
L
K
θ
θ
θ
θ
⋅
⋅
⋅ ⋅
=
&
S
K
:
Source Strength
Λ:
Dose Rate Constant
TG-43, Nath R et al, 1995
TG-43 U1, Rivard M et al, 2004
G(r,θ):
Geometry Function
g(r):
Radial Dose Function
F(r,θ):
Anisotropy Function
(r
0
, θ
0
):
(1.0cm, 90
°
)